package com.heima.wemedia.service.impl;


import com.alibaba.fastjson.JSON;
import com.baomidou.mybatisplus.core.conditions.query.LambdaQueryWrapper;
import com.baomidou.mybatisplus.core.metadata.IPage;
import com.baomidou.mybatisplus.core.toolkit.Wrappers;
import com.baomidou.mybatisplus.extension.plugins.pagination.Page;
import com.baomidou.mybatisplus.extension.service.impl.ServiceImpl;
//import com.heima.common.constants.WemediaConstants;
import com.heima.common.constants.WemediaConstants;
import com.heima.common.exception.CustomException;
import com.heima.model.common.dtos.PageResponseResult;
import com.heima.model.common.dtos.ResponseResult;
import com.heima.model.common.enums.AppHttpCodeEnum;
import com.heima.model.wemedia.dtos.WmNewsDto;
import com.heima.model.wemedia.dtos.WmNewsPageReqDto;
import com.heima.model.wemedia.pojos.WmMaterial;
import com.heima.model.wemedia.pojos.WmNews;
//import com.heima.model.wemedia.pojos.WmNewsMaterial;
import com.heima.model.wemedia.pojos.WmNewsMaterial;
import com.heima.model.wemedia.pojos.WmSensitive;
import com.heima.utils.common.ThreadlocalUtil;
//import com.heima.utils.thread.WmThreadLocalUtil;
import com.heima.wemedia.mapper.WmMaterialMapper;
import com.heima.wemedia.mapper.WmNewsMapper;
//import com.heima.wemedia.mapper.WmNewsMaterialMapper;
import com.heima.wemedia.mapper.WmNewsMaterialMapper;
import com.heima.wemedia.service.WmNewsAutoScanService;
import com.heima.wemedia.service.WmNewsService;
import com.heima.wemedia.service.WmNewsTaskService;
import lombok.extern.slf4j.Slf4j;
import org.apache.commons.lang3.StringUtils;
import org.springframework.beans.BeanUtils;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.kafka.core.KafkaTemplate;
import org.springframework.stereotype.Service;
import org.springframework.transaction.annotation.Transactional;

import java.util.ArrayList;
import java.util.Date;
import java.util.List;
import java.util.Map;
import java.util.stream.Collectors;

@Service
@Slf4j
@Transactional
public class WmNewsServiceImpl extends ServiceImpl<WmNewsMapper, WmNews> implements WmNewsService {

    /**
     * 条件查询文章列表
     *
     * @param dto
     * @return
     */
    @Override
    public ResponseResult findList(WmNewsPageReqDto dto) {
        //1.检查参数
        //分页检查
        dto.checkParam();

        //2.分页条件查询
        IPage page = new Page(dto.getPage(), dto.getSize());
        LambdaQueryWrapper<WmNews> lambdaQueryWrapper = new LambdaQueryWrapper();
        //状态精确查询
        if (dto.getStatus() != null) {
            lambdaQueryWrapper.eq(WmNews::getStatus, dto.getStatus());
        }

        //频道精确查询
        if (dto.getChannelId() != null) {
            lambdaQueryWrapper.eq(WmNews::getChannelId, dto.getChannelId());
        }

        //时间范围查询
        if (dto.getBeginPubDate() != null && dto.getEndPubDate() != null) {
            lambdaQueryWrapper.between(WmNews::getPublishTime, dto.getBeginPubDate(), dto.getEndPubDate());
        }

        //关键字的模糊查询
        if (StringUtils.isNotBlank(dto.getKeyword())) {
            lambdaQueryWrapper.like(WmNews::getTitle, dto.getKeyword());
        }

        //查询当前登录人的文章
        lambdaQueryWrapper.eq(WmNews::getUserId, ThreadlocalUtil.getUser().getId());

        //按照发布时间倒序查询
        lambdaQueryWrapper.orderByDesc(WmNews::getPublishTime);


        page = page(page, lambdaQueryWrapper);

        //3.结果返回
        ResponseResult responseResult = new PageResponseResult(dto.getPage(), dto.getSize(), (int) page.getTotal());
        responseResult.setData(page.getRecords());


        return responseResult;
    }

    @Autowired
    WmNewsMaterialMapper wmNewsMaterialMapper;
    @Autowired
    WmMaterialMapper wmMaterialMapper;
    @Autowired
    WmNewsAutoScanService wmNewsAutoScanService;
    @Autowired
    WmNewsTaskService wmNewsTaskService;
    @Override
    @Transactional
    public ResponseResult submitNews(WmNewsDto dto) {

        log.info("dao: {}",dto);
        if (dto == null || dto.getContent() == null)
            return ResponseResult.errorResult(AppHttpCodeEnum.PARAM_INVALID);
        WmNews wmNews = new WmNews();
        BeanUtils.copyProperties(dto, wmNews);

        List<String> contentImages = getContentImages(dto.getContent());

        //处理文章封面
        List<String> newsImages = new ArrayList<>();
        setNewsImages(wmNews, contentImages, dto, newsImages);
        //文章提交或更新
        newsSubmitOrUpdate(wmNews);

        //文章与封面素材关联
        newsRelativeImages(wmNews, newsImages);

        //文章与内容素材关联
        newRelativeContent(wmNews, contentImages);

        //文章审核(异步)
//        wmNewsAutoScanService.selfSensitiveScan(wmNews.getId());

        //添加任务，待审核   （消费任务审核）
        wmNewsTaskService.addNewsToTask(wmNews.getId(), wmNews.getPublishTime());

        return ResponseResult.okResult(AppHttpCodeEnum.SUCCESS);
    }

    @Autowired
    private KafkaTemplate<String, String> kafkaTemplate;
    @Override
    public ResponseResult downOrUp(WmNewsDto dto) {
        //1.检查参数
        if(dto.getId() == null){
            return ResponseResult.errorResult(AppHttpCodeEnum.PARAM_INVALID);
        }

        //2.查询文章
        WmNews wmNews = getById(dto.getId());
        if(wmNews == null){
            return ResponseResult.errorResult(AppHttpCodeEnum.DATA_NOT_EXIST,"文章不存在");
        }

        //3.判断文章是否已发布
        if(!wmNews.getStatus().equals(WmNews.Status.PUBLISHED.getCode())){
            return ResponseResult.errorResult(AppHttpCodeEnum.PARAM_INVALID,"当前文章不是发布状态，不能上下架");
        }
        //4.修改文章状态
        if(dto.getEnable() != null){
            wmNews.setEnable(dto.getEnable());
            updateById(wmNews);

            kafkaTemplate.send(WemediaConstants.WM_NEWS_UP_OR_DOWN_TOPIC, JSON.toJSONString(wmNews));
        }

        return ResponseResult.okResult(AppHttpCodeEnum.SUCCESS);
    }

    //文章与封面素材关联实现
    private void newRelativeContent(WmNews wmNews, List<String> contentImages) {
        List<Integer> materialIds = getMaterialIds(contentImages);
        if (!materialIds.isEmpty()) {
            saveNewsRelativeMaterial(wmNews, materialIds, WemediaConstants.WM_CONTENT_REFERENCE);
        }
    }
    //文章与内容素材关联实现
    private void newsRelativeImages(WmNews wmNews, List<String> newsImages) {
        List<Integer> materialIds = getMaterialIds(newsImages);
        if (!materialIds.isEmpty()) {
            saveNewsRelativeMaterial(wmNews, materialIds, WemediaConstants.WM_COVER_REFERENCE);
        }
    }
    //保存关联关系
    private void saveNewsRelativeMaterial(WmNews wmNews, List<Integer> materialIds, Short wmCoverReference) {
        wmNewsMaterialMapper.saveRelations(materialIds, wmNews.getId(), wmCoverReference);
    }
    //获取素材ids
    private List<Integer> getMaterialIds(List<String> materialUrls) {
        if (materialUrls != null && !materialUrls.isEmpty()){
            List<Integer> wmMaterialIds = wmMaterialMapper.selectList(new LambdaQueryWrapper<WmMaterial>().in(WmMaterial::getUrl, materialUrls))
                .stream().map(WmMaterial::getId).collect(Collectors.toList());

            if (wmMaterialIds.size() != materialUrls.size())
                throw new CustomException(AppHttpCodeEnum.MATERIAL_LACK);
            if (wmMaterialIds.isEmpty())
                throw new CustomException(AppHttpCodeEnum.MATERIAL_NOT_EXIST);
            return wmMaterialIds;
        }
        return new ArrayList<>();
    }
    //设置文章的封面图片信息实现
    private void setNewsImages(WmNews wmNews, List<String> contentImages, WmNewsDto dto, List<String> newsImages) {

        if (dto.getType() != WemediaConstants.WM_NEWS_TYPE_AUTO) {
            wmNews.setType(dto.getType());
            wmNews.setImages(StringUtils.join(dto.getImages(), ","));
            newsImages.addAll(dto.getImages());
        }else {

            if (contentImages.size() >= WemediaConstants.WM_NEWS_MANY_IMAGE) {
                wmNews.setType(WemediaConstants.WM_NEWS_MANY_IMAGE);
                wmNews.setImages(StringUtils.join(contentImages.stream().limit(3).collect(Collectors.toList()), ","));
                newsImages.addAll(contentImages.stream().limit(3).collect(Collectors.toList()));
            }

            if (contentImages.size() < WemediaConstants.WM_NEWS_MANY_IMAGE && contentImages.size() > WemediaConstants.WM_NEWS_NONE_IMAGE)
            {
                wmNews.setType(WemediaConstants.WM_NEWS_SINGLE_IMAGE);
                wmNews.setImages(StringUtils.join(contentImages.stream().limit(1).collect(Collectors.toList()), ","));
                newsImages.addAll(contentImages.stream().limit(1).collect(Collectors.toList()));

            }
            if (contentImages.size() == WemediaConstants.WM_NEWS_NONE_IMAGE){
                wmNews.setType(WemediaConstants.WM_NEWS_NONE_IMAGE);
                wmNews.setImages(null);
            }

        }

    }
    //提取文章内容中的图片信息
    private List<String> getContentImages(String content) {
        List<String> images = new ArrayList<>();
        List<Map> maps = JSON.parseArray(content, Map.class);
        for (Map map : maps) {
            if (map.get("type").equals("image")) {
                images.add(map.get("value").toString());
            }
        }
        return images;
    }
    //保存新闻与素材实现
    private void newsSubmitOrUpdate(WmNews wmNews) {

        wmNews.setSubmitedTime(new Date());
        if (wmNews.getId() == null) {
            wmNews.setCreatedTime(new Date());
            wmNews.setUserId(ThreadlocalUtil.getUser().getId());
            save(wmNews);
        }else {
            wmNewsMaterialMapper.delete(new LambdaQueryWrapper<WmNewsMaterial>().eq(WmNewsMaterial::getNewsId, wmNews.getId()));
            updateById(wmNews);
        }


    }

//    /**
//     * 发布修改文章或保存为草稿
//     * @param dto
//     * @return
//     */
//    @Override
//    public ResponseResult submitNews(WmNewsDto dto) {
//
//        //0.条件判断
//        if(dto == null || dto.getContent() == null){
//            return ResponseResult.errorResult(AppHttpCodeEnum.PARAM_INVALID);
//        }
//
//        //1.保存或修改文章
//
//        WmNews wmNews = new WmNews();
//        //属性拷贝 属性名词和类型相同才能拷贝
//        BeanUtils.copyProperties(dto,wmNews);
//        //封面图片  list---> string
//        if(dto.getImages() != null && dto.getImages().size() > 0){
//            //[1dddfsd.jpg,sdlfjldk.jpg]-->   1dddfsd.jpg,sdlfjldk.jpg
//            String imageStr = StringUtils.join(dto.getImages(), ",");
//            wmNews.setImages(imageStr);
//        }
//        //如果当前封面类型为自动 -1
//        if(dto.getType().equals(WemediaConstants.WM_NEWS_TYPE_AUTO)){
//            wmNews.setType(null);
//        }
//
//        saveOrUpdateWmNews(wmNews);
//
//        //2.判断是否为草稿  如果为草稿结束当前方法
//        if(dto.getStatus().equals(WmNews.Status.NORMAL.getCode())){
//            return ResponseResult.okResult(AppHttpCodeEnum.SUCCESS);
//        }
//
//        //3.不是草稿，保存文章内容图片与素材的关系
//        //获取到文章内容中的图片信息
//        List<String> materials =  ectractUrlInfo(dto.getContent());
//        saveRelativeInfoForContent(materials,wmNews.getId());
//
//        //4.不是草稿，保存文章封面图片与素材的关系，如果当前布局是自动，需要匹配封面图片
//        saveRelativeInfoForCover(dto,wmNews,materials);
//
//        return ResponseResult.okResult(AppHttpCodeEnum.SUCCESS);
//
//    }
//
//    /**
//     * 第一个功能：如果当前封面类型为自动，则设置封面类型的数据
//     * 匹配规则：
//     * 1，如果内容图片大于等于1，小于3  单图  type 1
//     * 2，如果内容图片大于等于3  多图  type 3
//     * 3，如果内容没有图片，无图  type 0
//     *
//     * 第二个功能：保存封面图片与素材的关系
//     * @param dto
//     * @param wmNews
//     * @param materials
//     */
//    private void saveRelativeInfoForCover(WmNewsDto dto, WmNews wmNews, List<String> materials) {
//
//        List<String> images = dto.getImages();
//
//        //如果当前封面类型为自动，则设置封面类型的数据
//        if(dto.getType().equals(WemediaConstants.WM_NEWS_TYPE_AUTO)){
//            //多图
//            if(materials.size() >= 3){
//                wmNews.setType(WemediaConstants.WM_NEWS_MANY_IMAGE);
//                images = materials.stream().limit(3).collect(Collectors.toList());
//            }else if(materials.size() >= 1 && materials.size() < 3){
//                //单图
//                wmNews.setType(WemediaConstants.WM_NEWS_SINGLE_IMAGE);
//                images = materials.stream().limit(1).collect(Collectors.toList());
//            }else {
//                //无图
//                wmNews.setType(WemediaConstants.WM_NEWS_NONE_IMAGE);
//            }
//
//            //修改文章
//            if(images != null && images.size() > 0){
//                wmNews.setImages(StringUtils.join(images,","));
//            }
//            updateById(wmNews);
//        }
//        //第二个功能：保存封面图片与素材的关系
//        if(images != null && images.size() > 0){
//            saveRelativeInfo(images,wmNews.getId(),WemediaConstants.WM_COVER_REFERENCE);
//        }
//
//    }
//
//
//    /**
//     * 处理文章内容图片与素材的关系
//     * @param materials
//     * @param newsId
//     */
//    private void saveRelativeInfoForContent(List<String> materials, Integer newsId) {
//        saveRelativeInfo(materials,newsId,WemediaConstants.WM_CONTENT_REFERENCE);
//    }
//
//    @Autowired
//    private WmMaterialMapper wmMaterialMapper;
//
//    /**
//     * 保存文章图片与素材的关系到数据库中
//     * @param materials
//     * @param newsId
//     * @param type
//     */
//    private void saveRelativeInfo(List<String> materials, Integer newsId, Short type) {
//        if(materials != null && !materials.isEmpty()){
//            //通过图片的url查询素材的id
//            List<WmMaterial> dbMaterials = wmMaterialMapper.selectList(Wrappers.<WmMaterial>lambdaQuery().in(WmMaterial::getUrl, materials));
//
//            //判断素材是否有效
//            if(dbMaterials==null || dbMaterials.size() == 0){
//                //手动抛出异常   第一个功能：能够提示调用者素材失效了，第二个功能，进行数据的回滚
//                throw new CustomException(AppHttpCodeEnum.MATERIASL_REFERENCE_FAIL);
//            }
//
//            if(materials.size() != dbMaterials.size()){
//                throw new CustomException(AppHttpCodeEnum.MATERIASL_REFERENCE_FAIL);
//            }
//
//            List<Integer> idList = dbMaterials.stream().map(WmMaterial::getId).collect(Collectors.toList());
//
//            //批量保存
//            wmNewsMaterialMapper.saveRelations(idList,newsId,type);
//        }
//    }
//
//
//    /**
//     * 提取文章内容中的图片信息
//     * @param content
//     * @return
//     */
//    private List<String> ectractUrlInfo(String content) {
//        List<String> materials = new ArrayList<>();
//
//        List<Map> maps = JSON.parseArray(content, Map.class);
//        for (Map map : maps) {
//            if(map.get("type").equals("image")){
//                String imgUrl = (String) map.get("value");
//                materials.add(imgUrl);
//            }
//        }
//
//        return materials;
//    }
//
//    @Autowired
//    private WmNewsMaterialMapper wmNewsMaterialMapper;
//
//    /**
//     * 保存或修改文章
//     * @param wmNews
//     */
//    private void saveOrUpdateWmNews(WmNews wmNews) {
//        //补全属性
//        wmNews.setUserId(WmThreadLocalUtil.getUser().getId());
//        wmNews.setCreatedTime(new Date());
//        wmNews.setSubmitedTime(new Date());
//        wmNews.setEnable((short)1);//默认上架
//
//        if(wmNews.getId() == null){
//            //保存
//            save(wmNews);
//        }else {
//            //修改
//            //删除文章图片与素材的关系
//            wmNewsMaterialMapper.delete(Wrappers.<WmNewsMaterial>lambdaQuery().eq(WmNewsMaterial::getNewsId,wmNews.getId()));
//            updateById(wmNews);
//        }
//    }


}
